Wisconsin Backflow Testing has all the answers to your backflow questions! 
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What is a backflow assembly?
When do I need to have my backflow assemblies tested?
Who can test my backflow assemblies?
Are all backflow assembly testing companies alike?
What is a backflow assembly? 
A backflow assembly is an approved, testable assembly which uses valves in different configurations to prevent polluted or contaminated water from reversing direction and flowing backward. Common uses are on fire sprinkler systems, irrigation systems, boiler make-up and domestic water services.
When do I need to have my backflow assemblies tested? 
Each backflow assembly must be tested and certified upon installation, after any repairs are made and a minimum of once per year.
Who can test my backflow assemblies? 
If your assemblies are located in Wisconsin, Wisconsin Backflow Testing can test all of them using our licensed Cross-Connection Control Device Inspectors.
Are all backflow assembly testing companies alike? 
No. Wisconsin Backflow Testing employees are also Master Plumbers which means they can install Backflow devices if needed.